What if there was a concert celebrating America’s 250th anniversary and none of the artists showed up? That’s one of the possibilities that Freedom 250, a public-private partnership created by the Trump administration, is facing after the majority of the artists it booked to perform at a marquee concert series dropped out this week. The Commodores, Martina McBride, Morris Day & the Time, Poison frontman Bret Michaels, and rapper Young MC have all publicly distanced themselves from the string of